package ofxgo

import (
	"errors"
	"github.com/aclindsa/go/src/encoding/xml"
)

// Represents a top-level OFX message set (i.e. BANKMSGSRSV1)
type Message interface {
	Name() string         // The name of the OFX element this set represents
	Valid() (bool, error) // Called before a Message is marshaled and after
	// it's unmarshaled to ensure the request or response is valid
}

type Status struct {
	XMLName  xml.Name `xml:"STATUS"`
	Code     Int      `xml:"CODE"`
	Severity String   `xml:"SEVERITY"`
	Message  String   `xml:"MESSAGE,omitempty"`
}

func (s *Status) Valid() (bool, error) {
	switch s.Severity {
	case "INFO", "WARN", "ERROR":
		return true, nil
	default:
		return false, errors.New("Invalid STATUS>SEVERITY")
	}
}

type BankAcct struct {
	XMLName  xml.Name // BANKACCTTO or BANKACCTFROM
	BankId   String   `xml:"BANKID"`
	BranchId String   `xml:"BRANCHID,omitempty"` // Unused in USA
	AcctId   String   `xml:"ACCTID"`
	AcctType String   `xml:"ACCTTYPE"`          // One of CHECKING, SAVINGS, MONEYMRKT, CREDITLINE, CD
	AcctKey  String   `xml:"ACCTKEY,omitempty"` // Unused in USA
}

type CCAcct struct {
	XMLName xml.Name // CCACCTTO or CCACCTFROM
	AcctId  String   `xml:"ACCTID"`
	AcctKey String   `xml:"ACCTKEY,omitempty"` // Unused in USA
}

type InvAcct struct {
	XMLName  xml.Name // INVACCTTO or INVACCTFROM
	BrokerId String   `xml:"BROKERID"`
	AcctId   String   `xml:"ACCTID"`
}

type Currency struct {
	XMLName xml.Name // CURRENCY or ORIGCURRENCY
	CurRate Amount   `xml:"CURRATE"` // Ratio of <CURDEF> currency to <CURSYM> currency
	CurSym  String   `xml:"CURSYM"`  // ISO-4217 3-character currency identifier
}